Body@Work, Research Center Physical Activity, Work and Health, TNO-VU University Medical Center, Van der Boechorststraat 7, Amsterdam, The Netherlands.
Int Arch Occup Environ Health. 2009 Oct;82(9):1115-21. doi: 10.1007/s00420-009-0407-8. Epub 2009 Mar 1.
To quantify the age-related changes in muscular capacity in a working population, and to investigate whether these changes are dependent on sports participation.
Data were used from the longitudinal study on musculoskeletal disorders, absenteeism, stress and health (n = 1,800). At baseline, isokinetic lifting strength and static muscle endurance were assessed, and endurance measurements were repeated after 3 years of follow-up. Sports participation was assessed using a questionnaire.
Cross-sectionally, static endurance of the neck/shoulder muscles was highest among older workers, but decreased longitudinally among all age groups. Younger workers who participated in sports 3 h per week or more had the best performance, but older workers who participated between 0 and 3 h per week had better performance than those who participated in sports more frequently.
There were age-related differences on muscular capacity. Younger workers who participated in sports frequently had the best muscular capacity. For aging workers, moderate sports participation seems to be effective in keeping them suitable for the relatively growing work demands.
定量研究职业人群肌肉能力随年龄的变化，并探讨这种变化是否与运动参与有关。
本研究数据来自肌肉骨骼疾病、缺勤、压力和健康的纵向研究（n=1800）。在基线时，评估了等速提升力量和静态肌肉耐力，随访 3 年后重复耐力测量。运动参与情况通过问卷调查评估。
在横断面研究中，颈部/肩部肌肉的静态耐力在年龄较大的工人中最高，但在所有年龄组中均随时间呈下降趋势。每周运动 3 小时或以上的年轻工人表现最好，但每周运动 0-3 小时的老年工人比运动更频繁的工人表现更好。
肌肉能力存在与年龄相关的差异。经常运动的年轻工人肌肉能力最好。对于老年工人来说，适度的运动参与似乎可以有效地保持他们适应不断增长的工作需求。
